God of War III

Story Related Trophy. Cannot be Missed.

You will start the game where God of War II left off with the Titans climbing up Mount Olympus and Kratos on the back of Gaia. Eventually there will be a cutscene where Poseidon jumps down from Mount Olympus into the sea. He will rise up from there as a giant water-based behemoth. The Poseidon fight has 4 sections to it. Complete all 4 sections to receive the trophy.

In the first section, he will be gripping on to Gaia on either side with a few claw type appendages. Make sure to avoid his lightning attack and his trident slam attack. Simply attack these claws until they lose their grip on Gaia and let go. From here, Gaia will grab Poseidon and slam him into the side of the mountain and hold him there. This will start the second section of the fight.

In this section, Poseidon will try to slam his fist down on you when you get too close. Sometimes, he'll pull back on his trident to attempt a slam attack with it. Simply roll as far back and to the right as far as you can. You should be behind the tall rock here to avoid it. Just keep hitting him with attacks until you get the QTE event above his head. When you see this, climb up the rock on the right (the one you hide behind when avoiding the trident stab attack) and initiate the QTE to finish this section of the fight.

This section is a repeat of the first section. Roll to the sides to avoid the claw attack and lightning strike attack. Keep attacking his claws that are holding onto Gaia. When all the claws have been released from Gaia, there will be a quick scene where Gaia tries to punch Poseidon but he stops her with his claws. Now you have to swing around using the prompts on screen to release the claw. This will force Kratos to jump into the behemoth and drag Poseidon out.

From here all you have to do is wait for the talking scene to end, then intiate the QTE to kill Poseidon. When you have completed this, you will receive the trophy.

If you're having trouble, refer to this video by PowerPyx: